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Finding the Fourth Proportional to 340,299.56, 510,445.86 and 87,579.06

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Solution

The fourth proportional to 340,299.56, 510,445.86 and 87,579.06 is: 131,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,299.56 : 510,445.86 = 87,579.06 : x
  2. Step 2: Convert to fraction form
    340,299.56/510,445.86 = 87,579.06/x
  3. Step 3: Cross multiply
    340,299.56x = 510,445.86 × 87,579.06
  4. Step 4: Simplify right side
    340,299.56x = 44,704,366,357.10
  5. Step 5: Solve for x
    x = 44,704,366,357.10/340,299.56
  6. Step 6: Final answer
    x = 131,367.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.